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A ponytail on a balding man. It can be viewed as a bad cross pollination between an ultimullet and a skullet. Very popular hairstyle in the 1980's.

Also, it is a species of endangered fish (Gila elegans). It is a rare minnow found in the Colorado River.

My bald old man has a bonytail down to his fatass.
by The 80's rock! June 09, 2006
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Jun 24 Word of the Day
An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.
Sarah: 'OMG Susan, I can't believe you are wearing the same skirt as yesterday. Oh, and by the way, EVERYONE knows what you did with Kevin on the weekend. Plus you look a little fat, are you retaining water?'

Susan: 'LEAVE BRITNEY ALONE!'
by Billy Chickenhole September 15, 2007
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A girl with no booty where her pants can barely stay on without the assistance of a belt.
The kind of bonytail that you don't bounching on your cock because it will be like fucking a wall
by KBCA February 08, 2007
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